corona radiata

noun
co·​ro·​na ra·​di·​a·​ta | \ kə-ˈrō-nə-ˌrā-dē-ˈā-tə How to pronounce corona radiata (audio) , -ˈä-tə \
plural coronae radiatae\ kə-​ˈrō-​(ˌ)nē-​ˌrā-​dē-​ˈā-​(ˌ)tē How to pronounce coronae radiatae (audio) , -​ˈä-​(ˌ)tē \

Definition of corona radiata

1 : the zone of small follicular cells immediately surrounding the ovum in the graafian follicle and accompanying the ovum on its discharge from the follicle
2 : a fan-shaped mass of white matter fibers passing to and from the cerebral cortex

First Known Use of corona radiata

1869, in the meaning defined at sense 2

History and Etymology for corona radiata

borrowed from New Latin corōna radiāta "radiant crown" (crown encircled by points representing solar rays)

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The first known use of corona radiata was in 1869

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Cite this Entry

“Corona radiata.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/corona%20radiata. Accessed 22 Sep. 2020.

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More Definitions for corona radiata

corona radiata

noun
co·​ro·​na ra·​di·​a·​ta | \ kə-ˈrō-nə-ˌrād-ē-ˈāt-ə, -ˈät- How to pronounce corona radiata (audio) \
plural coronae radiatae\ -​(ˌ)nē-​ˌrād-​ē-​ˈāt-​(ˌ)ē, -​ˈät-​ How to pronounce coronae radiatae (audio) \

Medical Definition of corona radiata

1 : the zone of small follicular cells immediately surrounding the ovum in the graafian follicle and accompanying the ovum on its discharge from the follicle
2 : a large mass of myelinated nerve fibers radiating from the internal capsule to the cerebral cortex

More from Merriam-Webster on corona radiata

Britannica.com: Encyclopedia article about corona radiata

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